GB2261796B - A Communications Bus - Google Patents

A Communications Bus

Info

Publication number
GB2261796B
GB2261796B GB9124915A GB9124915A GB2261796B GB 2261796 B GB2261796 B GB 2261796B GB 9124915 A GB9124915 A GB 9124915A GB 9124915 A GB9124915 A GB 9124915A GB 2261796 B GB2261796 B GB 2261796B
Authority
GB
United Kingdom
Prior art keywords
communications bus
communications
bus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9124915A
Other versions
GB2261796A (en
GB9124915D0 (en
Inventor
Anthony Vincent Field
John Michael Blackburn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DOWTY COMMUNICATIONS Ltd
Cray Communications Ltd
Original Assignee
DOWTY COMMUNICATIONS Ltd
Cray Communications Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DOWTY COMMUNICATIONS Ltd, Cray Communications Ltd filed Critical DOWTY COMMUNICATIONS Ltd
Priority to GB9124915A priority Critical patent/GB2261796B/en
Publication of GB9124915D0 publication Critical patent/GB9124915D0/en
Priority to EP92310558A priority patent/EP0544453A1/en
Publication of GB2261796A publication Critical patent/GB2261796A/en
Priority to US08/294,725 priority patent/US5430725A/en
Application granted granted Critical
Publication of GB2261796B publication Critical patent/GB2261796B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1623—Plesiochronous digital hierarchy [PDH]
    • H04J3/1647—Subrate or multislot multiplexing
GB9124915A 1991-11-23 1991-11-23 A Communications Bus Expired - Fee Related GB2261796B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9124915A GB2261796B (en) 1991-11-23 1991-11-23 A Communications Bus
EP92310558A EP0544453A1 (en) 1991-11-23 1992-11-19 A communication bus
US08/294,725 US5430725A (en) 1991-11-23 1994-08-22 Transmitting different size data items on a bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9124915A GB2261796B (en) 1991-11-23 1991-11-23 A Communications Bus

Publications (3)

Publication Number Publication Date
GB9124915D0 GB9124915D0 (en) 1992-01-22
GB2261796A GB2261796A (en) 1993-05-26
GB2261796B true GB2261796B (en) 1995-11-01

Family

ID=10705115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9124915A Expired - Fee Related GB2261796B (en) 1991-11-23 1991-11-23 A Communications Bus

Country Status (3)

Country Link
US (1) US5430725A (en)
EP (1) EP0544453A1 (en)
GB (1) GB2261796B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668807A (en) * 1995-11-30 1997-09-16 Motorola, Inc. Synchronization of transparent TDM superchannels
US6160653A (en) * 1997-03-26 2000-12-12 Sun Microsystems, Inc. Optical computer bus with dynamic bandwidth allocation
US6181707B1 (en) * 1997-04-04 2001-01-30 Clear Com Intercom system having unified control and audio data transport
US20080025341A1 (en) * 2006-07-31 2008-01-31 Motorola, Inc. Method and system for granting of channel slots
US8311085B2 (en) 2009-04-14 2012-11-13 Clear-Com Llc Digital intercom network over DC-powered microphone cable
US9639906B2 (en) 2013-03-12 2017-05-02 Hm Electronics, Inc. System and method for wideband audio communication with a quick service restaurant drive-through intercom
US20160261375A1 (en) * 2015-03-04 2016-09-08 Qualcomm Incorporated Packet format and coding method for serial data transmission
CN107256363B (en) * 2017-06-13 2020-03-06 杭州华澜微电子股份有限公司 High-speed encryption and decryption device composed of encryption and decryption module array

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1402826A (en) * 1972-02-29 1975-08-13 Siemens Ag Pcm tdm telecommunications systems

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209840A (en) * 1978-06-28 1980-06-24 Honeywell Inc. Data processing protocol system
US4340961A (en) * 1980-03-06 1982-07-20 Atomic Energy Of Canada Limited Distributed multi-port communications system
EP0132069A3 (en) * 1983-06-29 1987-11-11 Westinghouse Electric Corporation Distributed process control system with means and method of automatic data base management of broadcast information
US4763319A (en) * 1986-05-19 1988-08-09 Bell Communications Research, Inc. Multi-rate synchronous virtual circuit network for voice and data communications
US5001703A (en) * 1989-01-23 1991-03-19 Motorola, Inc. Spectrally efficient TDM duplex communication system
CA2015248C (en) * 1989-06-30 1996-12-17 Gerald R. Ash Fully shared communications network
DE69017203T2 (en) * 1990-06-21 1995-08-10 Ibm Broadband ring communication system and access control method.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1402826A (en) * 1972-02-29 1975-08-13 Siemens Ag Pcm tdm telecommunications systems

Also Published As

Publication number Publication date
GB2261796A (en) 1993-05-26
US5430725A (en) 1995-07-04
GB9124915D0 (en) 1992-01-22
EP0544453A1 (en) 1993-06-02

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19971123